Letter file



Feb. 10, 1931. p LUK 1,792,421

LETTER FILE Filed Jan. 6, 1930 .fzrezz or:

zdz aaz Patented Feb. 10, 1931 STTES PATENT OFFICE PAUL cation, or BAMBERG, GERMANY, AssIGNoR 'I'O A1). ESSIGH & 00., F oLDEn BUBG, GERMANY LETTER FILE Application filed January 6, 1930, Serial No.

I have filed applications for patent in Germany November 1, 1928; Switzerland November 28, 1929; Belgium December 3, 1929; and Great Britain November 28, 1929.

This invention relates to a letter file in which perforated leaves are filed on filing pins. In letter files it is known to make the back parts mutually shiftable, by guiding one of the parts by bolts in slots. From such letter files it has further become known to grip the filing pins by means of a slide and to thereby lock the file.

The letter file according to the invention can be opened like a book by lifting and turning down the cover, when the loose leaves are freely exposed and can be readily slid along their guiding pins in upward direction and then removed from the book file. The closed letter file forms a solid book locked so that no leaves can be removed unless the letter file has been unlocked. In this letter is filling bars are provided for pressing the loose leaves when the letter file is closed and not completely filled.

According to the invention the base bar carrying the filing pins is hingedly connected with the plate forming the file back, said latter plate carrying an angle-piece slidable parallel to the filing pins when the letter file is closed, the bent-01f part of this angle piece forming a covering bar adapted to be se-' cured by a latch in the closed position.

Several embodiments of the invention are possible, one embodiment being illustrated 5 by way of example in the accompanying drawing, in which Fig. 1 shows the open letter file in perspective view. 7

Fig. 2 shows a part section through the 4:) letter file.

Fig. 3 shows a perspective view of the holding bar.

Fig. 4 shows a perspective view of the open letter file the holding bar being inserted.

The letter file consists of a base bar I) on which the filing pins a are fixed, and over which a loose file cover 0 is placed which has holes engaging over the filing pins. Loose leaves d suitably perforated are filed on the pins. Atthe outer edge of the base bar 6 418,725, and in Germany ll'ovember 1,-1928.

closed, the holes 2' of the covering bar engage over the filing pins a. The angle piece It has inbent flanges is guided in guide slots of the back bar 0. On the inner side of the back plate 6 a locking bar we is arranged above the flanges is, shiftable transversely to said flanges and guided by means of slots 10 on bolts 0. This locking bar on bears against the upper edge of each of the flanges is when the letter file is closed as shown in Fig. 2.

The locking bar has an incision m designed to engage over the upper flange is.

In order to ensure that, when the letter file is closed and not completely filled with loose leaves, the pile of leaves will be; locked in position, one or more thick bars 29 are placed on the filing pins or. The pile of leaves can be covered with an upper cover 9, provided with perforations for reception on the filing pins a.

To prevent the file from accidentally closing, for instance when a pressure with the hand is exerted on one side of the open file, a loose transverse bar 8 is provided, which is similar to a rule, has a tongue 1', and is' made of metal or other suitable material. The tongue 7" is designed to be pushed over the back bar 6 so that the open file is held in the open position.

According to the invention the tongue 9' is made in one piece with the bar 8, it may however be made as an element fixed on a holding bar by rivets.

The tongue 1" is divided by one or more incisions t to form two or more tongues of different widths, such as r, r, so it can be used for files with broader or less broad back plates.

I claim l. A letter file, comprising in combination a base bar, filing pins fixed on said base bar, a plate forming the file back hingedly connected with said base bar, an angle plate one portion of which is mounted on said back plate for sliding parallel to said filing pins when the file is closed, the bent-oft part of said angle plate forming a covering bar for the file, and a locking bar for securing said angle plate in the closed position.

2. A letter file as specified in claim 1, in

Cfwhich the back plate is provided with guide slots and the angle plate with guide flanges adapted to engage with said slots of said back plate, in combination with a locking bar shiftable on the inner side of said back plate and adapted to engage in the closing position with said flanges.

3. The combination of a letter file as specified in claim 1 with one or more filler bars having perforations adapted to engage over the filing pins, for filling a not completely filled file and for pressing the filedloose leaves.

4. The combination of a letter file as specified in claim 1 with a separate file-supporting bar, the latter including means for engagingthe end of the back plate of the file for supporting the file in the open position.

5. The combination of a letter file as specified in claim 1 with a separate file-supporting bar, and a return bent tongue on said bar adapted to engage the end of the back plate of the file for supporting the file in its open position.

6. The combination of a letter file as specified in claim 1 with a separate file supporting bar, and a return bent tongue on said bar adapted to engage the end of the back plate of the file for supporting the file in its open position, said tongue being subdivided by an incision into two tongues of different widths.

In testimony whereof I aflix my signature.

PAUL GLUCK. 

